“I’ve known about the interest for a few weeks, so I’m excited to be here as a ​Hull City player now,” he said. “I’ve played under the Head Coach before and I really enjoyed that spell, so that was a big factor in me coming here. Hopefully I can continue to kick-on under him here.”

The transfer ends Long's 16-year association with ​Sheffield United, dating back to when he joined the youth ranks in 2002 at the age of nine.

After making his Blades debut in 2011, Long became the club's first-choice goalkeeper in the 2012/13 season, a position which he maintained into the following campaign.

However, he fell out of favour under Nigel Clough and was loaned out to Oxford United and Motherwell in the 2014/15 season.

He made 49 appearances on loan at AFC Wimbledon last season and played a key part in helping the Wombles to survive in League One, but he was transfer-listed by Sheffield United in May and has now moved onto pastures new.

Long replaces Allan McGregor, who was Hull's number one last season but has since returned to Rangers.